Finding the Fourth Proportional to 125,747.21, 173,516.60 and 72,029.03
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Solution
The fourth proportional to 125,747.21, 173,516.60 and 72,029.03 is: 99,391.72
Step by Step Solution
- Step 1: Write the proportion equation
125,747.21 : 173,516.60 = 72,029.03 : x - Step 2: Convert to fraction form
125,747.21/173,516.60 = 72,029.03/x - Step 3: Cross multiply
125,747.21x = 173,516.60 × 72,029.03 - Step 4: Simplify right side
125,747.21x = 12,498,231,519.32 - Step 5: Solve for x
x = 12,498,231,519.32/125,747.21 - Step 6: Final answer
x = 99,391.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.